kripken/emscripten — pull request #3093 by juj (2014-12-19 17:43:21+00:00)
Title: Native optimizer windows work

Work on making native optimizer functional on Windows:
- Allows configuring native optimizer location in .emscripten and in an environment variable.
- Adds workarounds to enable Visual Studio 2012 build in addition to Visual Studio 2013.
- Fix VS2012+VS2013 breakage on parsing "0xFF" with strtod.
- Adds an assert() to expose a failure in simplifyOps pass.